Add 2 image variants (root & rootless)

Dockerfile

@@ -1,4 +1,4 @@
-FROM nginxinc/nginx-unprivileged:stable-alpine
+FROM nginx:alpine
 
 LABEL author="Mohammad Naghavi <mohamnag@gmail.com>"
 
@@ -9,4 +9,4 @@ ADD js/ /opt/www/file-browser/js/
 ADD index.html /opt/www/file-browser/
 
 VOLUME /opt/www/files/
-EXPOSE 8080
+EXPOSE 80

Dockerfile-rootless

@@ -0,0 +1,12 @@
+FROM nginxinc/nginx-unprivileged:stable-alpine
+
+LABEL author="Mohammad Naghavi <mohamnag@gmail.com>"
+
+ADD default-rootless.conf /etc/nginx/conf.d/default.conf
+ADD css/ /opt/www/file-browser/css/
+ADD image/ /opt/www/file-browser/image/
+ADD js/ /opt/www/file-browser/js/
+ADD index.html /opt/www/file-browser/
+
+VOLUME /opt/www/files/
+EXPOSE 8080

README.md

@@ -12,9 +12,14 @@ A sample nginx configuration is also included which mounts **file browser** unde
 
 Mainly for demonstration purposes a docker image is also available [here](https://hub.docker.com/r/mohamnag/nginx-file-browser/).
 In order to use this docker image, the volume which has to be served should
-be mounted under `/opt/www/files/` and port `8080` of container shall be mapped
+be mounted under `/opt/www/files/` and port `80` (root) or `8080` (rootless)) of container shall be mapped
 to a proper port on host. A proper run would look like:
 
+root
+```
+$ docker run -p 8080:80 -v /path/to/my/files/:/opt/www/files/ mohamnag/nginx-file-browser
+```
+rootless:
 ```
 $ docker run -p 8080:8080 -v /path/to/my/files/:/opt/www/files/ mohamnag/nginx-file-browser
 ```

default-rootless.conf

@@ -0,0 +1,26 @@
+server {
+  listen       8080;
+  server_name  localhost;
+
+  root   /opt/www/;
+  index  index.html index.htm;
+
+  location /files/ {
+    alias /opt/www/files/;
+    index  ___i;        # we really need no index here, just listing files
+
+    autoindex on;
+    autoindex_format json;
+    disable_symlinks off;
+  }
+
+  location / {
+    root /opt/www/file-browser/;
+  }
+
+  error_page   500 502 503 504  /50x.html;
+  location = /50x.html {
+    root   /usr/share/nginx/html;
+  }
+
+}

default.conf

@@ -1,5 +1,5 @@
 server {
-  listen       8080;
+  listen       80;
   server_name  localhost;
 
   root   /opt/www/;